CN210294662U - Large-caliber double-paraboloid reflection modular collimator - Google Patents
Large-caliber double-paraboloid reflection modular collimator Download PDFInfo
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- CN210294662U CN210294662U CN201921582773.XU CN201921582773U CN210294662U CN 210294662 U CN210294662 U CN 210294662U CN 201921582773 U CN201921582773 U CN 201921582773U CN 210294662 U CN210294662 U CN 210294662U
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Abstract
The utility model relates to a can be applicable to the two parabolic reflection modularization collimator of heavy-calibre of simulation infinity target in the laboratory, this collimator include along the perpendicular main parabolic mirror subassembly that sets up with the optical axis direction that sets gradually of optical axis direction, with the mirror subassembly of optical axis direction slope 45 degrees settings, with the perpendicular secondary parabolic mirror subassembly and the modularization target surface subassembly that sets up of optical axis direction, modularization target surface subassembly sets up on mirror subassembly's reflection optical axis. The utility model discloses be convenient for system assembling, debugging and demarcation.
Description
Technical Field
The utility model belongs to the technical field of the optical equipment technique and specifically relates to a two parabolic reflection modularization collimator of heavy-calibre that can be applicable to simulation infinite target in the laboratory.
Background
With the continuous improvement of optical detection technology, the detection means of ground optical equipment is increasingly diversified. Photoelectric multi-optical-axis turntables and photoelectric ball pods used in the fields of ground airborne monitoring, aviation reconnaissance and the like often need visible and infrared multispectral multi-optical-axis equipment to work simultaneously. Meanwhile, the optical axes among the multiple devices are required to have high parallelism. In order to realize the calibration and calibration of the parallelism of multiple optical axes, the parallelism of multiple optical axes needs to be precisely adjusted during assembly, and detection and calibration equipment such as a large-caliber collimator is needed.
The basic principle of the collimator is that a target object is emitted through an optical system and then projected to an infinite distance to simulate an infinite target for observation by equipment.
The existing large-aperture collimator is limited by the inherent structure, and generally only a single spectral band target interface is configured, so that a target device needs to be replaced when multispectral band target simulation is needed, and calibration work needs to be carried out again. Secondly, the traditional collimator target plate component is placed in a converging light path, so that time and labor are wasted when the focal plane is adjusted, and the working efficiency is reduced. And thirdly, the traditional large-aperture collimator is only provided with one target surface position, and when the multispectral segment is required to work simultaneously, the use requirement of a multi-target surface target cannot be met.
In order to solve the above problems, a modular design method is needed to achieve simultaneous use of multiple targets or fast and convenient switching, and the design method has certain precision requirements.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem who exists among the background art, and provide a heavy-calibre pair of paraboloid reflection modularization collimator convenient to system's assembly, debugging and demarcation.
The technical solution of the utility model is that: the utility model relates to a two parabolic reflection modularization collimator of heavy-calibre, its special character lies in: the collimator comprises a primary parabolic mirror assembly, a secondary parabolic mirror assembly and a modular target surface assembly, wherein the primary parabolic mirror assembly is arranged in the optical axis direction in sequence and is perpendicular to the optical axis direction, the mirror assembly is arranged in the optical axis direction in an inclined mode of 45 degrees, the secondary parabolic mirror assembly is arranged in the optical axis direction in a perpendicular mode, and the modular target surface assembly is arranged on the reflecting optical axis of the mirror assembly.
Preferably, the modular target surface component comprises a first modular target surface component, a second modular target surface component and a third modular target surface component which are sequentially arranged along the reflection optical axis of the reflector component, the first modular target surface component comprises a first target surface spectroscope, a first target surface light pipe and a first target surface, the first target surface spectroscope and the reflection optical axis of the reflector component are inclined by 45 degrees, and the first target surface light pipe and the first target surface are sequentially arranged on the reflection optical axis of the first target surface spectroscope; the second modular target surface component comprises a second target surface spectroscope, a second target surface light pipe and a second target surface, the second target surface spectroscope and the reflection optical axis of the reflection component are arranged in an inclined manner of 45 degrees, and the second target surface light pipe and the second target surface are sequentially arranged on the reflection optical axis of the second target surface spectroscope; the third modular target surface assembly includes a third target surface light pipe disposed on the exit optical axis of the second target surface beamsplitter.
Preferably, the primary and secondary parabolic mirror assemblies have focal positions at the same point therebetween.
Preferably, the primary parabolic mirror assembly and the secondary parabolic mirror assembly have a primary image plane location therebetween.
Preferably, an expandable reserved interface is arranged between the third target surface light pipe and the second target surface spectroscope.
Preferably, the first target surface beam splitter and the second target surface beam splitter have a transmission to reflection ratio of 1:1, 1:2, or 2: 1.
Preferably, the primary parabolic reflector component is a reflector with the aperture of 350mm and the focal length of 1500mm, the substrate is made of low-expansion glass ceramics, the surface is plated with a protective silver external reflection film, and the surface type precision is superior to 1/50 lambda.
Preferably, the secondary parabolic reflector component is a reflector with the caliber of 30mm and the focal length of 200mm, the substrate is made of low-expansion glass ceramics, the surface is plated with a protective silver external reflection film, and the surface type precision is better than 1/50 lambda.
Preferably, the reflector component is a reflector with the caliber of 40mm, the substrate is made of low-expansion glass ceramics, the surface is plated with a protective silver external reflection film, and the surface accuracy is better than 1/50 lambda.
The utility model provides a heavy-calibre collimator with two parabolic reflecting structure, this collimator adopt modular structure, and two parabolic mirrors fold into leading telescope system with heavy-calibre light path, compress into narrower parallel beam with the light path. The utility model discloses compare than traditional heavy-calibre reflective collimator, owing to adopt two parabolic reflector structures, have an imaging surface between primary and secondary mirror, the system assembling, debugging and the demarcation of being convenient for. The utility model discloses a realize the modular design, the narrow parallel beam one end of system has the modularization target surface subassembly that different target surfaces are constituteed, and the modularization target surface subassembly includes that multiunit and optical axis are target surface spectroscope, target surface fluorescent lamp and the target surface of 45 degrees settings, the quantity of increase and decrease target that can be nimble as required. Therefore, the utility model has the advantages of it is following:
1. the simultaneous use of multiple target surfaces can be realized.
2. The simultaneous use of multispectral segment target sources can be achieved.
3. Because the rear end adopts parallel light path, when needing many target surfaces or many targets, only need switch rear end modularization target surface subassembly, need not to carry out accurate debugging, improved work efficiency greatly.
4. Compared with the traditional collimator, the system greatly improves the expandability, and by utilizing the characteristics of the large-caliber front telescopic system, the rear end modularized target surface component can replace various optical instruments and equipment.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present invention;
fig. 2 is the schematic structural diagram of the modular target surface component subsystem of the present invention.
The reference numbers are as follows:
100. a primary parabolic mirror assembly; 101. a mirror assembly disposed at 45 degrees; 102. a secondary parabolic mirror assembly; 103. a modular target surface assembly; 11. a first target surface beam splitter; 12. a second target surface beam splitter; 21. a first modular target surface light pipe assembly; 22. a second modular target surface light pipe assembly; 23. a third modular target surface light pipe assembly; 211. a first target surface light pipe; 221. a second target surface light pipe; 212. a first target surface; 222. a second target surface; 231. a third target surface light pipe; 233. a third target surface; and T, expandable reserved interfaces.
Detailed Description
Referring to fig. 1, the structure of the embodiment of the present invention includes a primary parabolic mirror assembly 100 vertically disposed along the optical axis, wherein the aperture is 350mm, the focal length is 1500mm, the substrate is made of low-expansion glass ceramics, the surface is plated with a protective silver outer reflective film, and the surface precision (RMS) is better than 1/50 λ. The reflector assembly 101 is arranged along the direction of an optical axis and inclined by 45 degrees, the caliber of the reflector assembly is 40mm, the substrate adopts low-expansion glass ceramics, the surface of the reflector assembly is plated with a protective silver external reflection film, and the surface form precision (RMS) of the reflector assembly is superior to 1/50 lambda. The secondary parabolic mirror assembly 102 is vertically arranged along the optical axis direction, the caliber of the secondary parabolic mirror assembly is 30mm, the focal length of the secondary parabolic mirror assembly is 200mm, the substrate adopts low-expansion glass ceramics, the surface of the secondary parabolic mirror assembly is plated with a protective silver external reflection film, and the surface type precision (RMS) of the secondary parabolic mirror assembly is superior to 1/50 lambda. The modular target surface assembly 103 is disposed on the reflective optical axis of the mirror assembly 101, wherein:
the primary and secondary parabolic mirror assemblies 100 and 102 have their focal positions at the same point therebetween. The primary image plane position is arranged between the primary parabolic mirror assembly 100 and the secondary parabolic mirror assembly 102, the primary parabolic mirror assembly 100 and the secondary parabolic mirror assembly 102 can be clearly and perfectly imaged at the position to form a front telescopic system together, and large-aperture light beams of the system can be compressed into narrow parallel light beams.
The 45-degree mirror assembly 101 is arranged close to the primary parabolic mirror assembly 100 and has a small caliber, and the small obscuration ratio of the whole system is guaranteed. The mirror unit 101 provided at 45 degrees can fold a narrow parallel optical path at 90 degrees and can finely adjust the angle.
Referring to fig. 2, conventionally, according to general requirements, the utility model needs to work simultaneously with three targets of visible light, infrared spectrum and target reference. When implemented according to this layout, three modular target surface assemblies are required, and therefore the modular target surface assembly 103 has a first modular target surface assembly 21, a second modular target surface assembly 22 and a third modular target surface assembly 23 built into it.
A first modular target surface assembly 21 is positioned along the 90 degree folded optical path to provide different spectral ranges and different targets for the collimator. A first target surface beam splitter 11 is included, arranged at 45 degrees, for separating different spectra or different targets. The first target surface light pipe 211 is capable of collimating the pattern of graphics on the first target surface 212 into a collimated beam into a primary system.
A second modular target surface assembly 22 is also provided along the 90-degree folded path to provide different spectral bands and different targets for the collimator. A second target surface beam splitter 12 is included, arranged at 45 degrees, to separate different spectra or different targets. The second target surface light pipe 221 is capable of collimating the pattern of the graphics on the second target surface 222 into a collimated beam into a primary system.
A third modular target surface assembly 23 is also provided along the 90-degree folded optical path, and a third target surface light pipe 231 can collimate the graphic pattern on the third target surface 233 into a parallel beam to enter the primary system.
An expandable reserved interface 7 is arranged between the third target surface light pipe 231 and the second target surface spectroscope 12, and the expandable reserved interface 7 can be accessed into a plurality of groups of modularized target surface components according to actual needs.
The first target surface spectroscope 11 and the second target surface spectroscope 12 have various specifications such as transmission and reflection ratios of 1:1, 1:2, 2:1 and the like, and can be flexibly replaced according to different spectrum requirements.
The first target surface light pipe 211, the second target surface light pipe 221 and the third target surface light pipe 231 have various focal lengths and various view field specifications, and can be flexibly replaced according to different focal lengths and image quality requirements.
The first target surface 212, the second target surface 222, and the third target surface 233 have a plurality of specifications such as a plurality of star points, crosses, and discrimination pattern, and can be attached and detached as necessary.
The utility model discloses the theory of operation as follows:
because the light path has reversibility, for the expression convenience, the expression method that adopts reverse light path carries out the systematic narration this the utility model discloses a theory of operation and embodiment.
The parallel light beam enters the utility model from the incident end, converges at the focus position after being reflected by the primary parabolic mirror assembly 100, and then diverges to the secondary parabolic mirror assembly 102 from the focus position.
Because the focal position of the secondary parabolic mirror assembly 102 is coincident with the focal position of the primary parabolic mirror assembly 100, the light beams are collimated into ideal parallel light beams and further spread, and then are bent into 90 degrees by the mirror assembly 101 arranged along the optical axis direction at 45 degrees to exit the front telescopic system.
The 45-degree mirror assembly 101 is placed a distance in front of the primary parabolic mirror assembly 100 to ensure that the system does not block light and reduce the obscuration ratio of the reflective system.
After entering the rear end modularized target surface component 103, the light beam is deflected by the beam splitter and enters the target surface light pipe, and then is collimated by the target surface light pipe to realize imaging on the target surface.
The modularized target surface component at the rear end can be flexibly replaced, disassembled and assembled, a collimator system with multiple targets and multiple spectral sections can be formed, and the diversified use capability of the device is greatly improved.
The above is only the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the protection scope of the claims.
Claims (9)
1. A large-caliber double-paraboloid reflection modular collimator is characterized in that: the collimator comprises a primary parabolic mirror assembly, a secondary parabolic mirror assembly and a modular target surface assembly, wherein the primary parabolic mirror assembly is arranged in the direction of an optical axis and is perpendicular to the optical axis, the mirror assembly is arranged in the direction of the optical axis in sequence, the mirror assembly is inclined by 45 degrees in the direction of the optical axis, the secondary parabolic mirror assembly is arranged in the direction perpendicular to the optical axis, and the modular target surface assembly is arranged on the reflecting optical axis of the mirror assembly.
2. The large aperture dual paraboloid reflective modular collimator of claim 1, wherein: the modularized target surface component comprises a first modularized target surface component, a second modularized target surface component and a third modularized target surface component which are sequentially arranged along the reflection optical axis of the reflector component, the first modularized target surface component comprises a first target surface spectroscope, a first target surface light pipe and a first target surface, the first target surface spectroscope and the reflection optical axis of the reflector component are arranged in an inclined manner at 45 degrees, and the first target surface light pipe and the first target surface are sequentially arranged on the reflection optical axis of the first target surface spectroscope; the second modularized target surface component comprises a second target surface spectroscope, a second target surface light pipe and a second target surface, the second target surface spectroscope and the reflection optical axis of the reflection mirror component are arranged in an inclined manner at 45 degrees, and the second target surface light pipe and the second target surface are sequentially arranged on the reflection optical axis of the second target surface spectroscope; the third modular target surface assembly includes a third target surface light pipe disposed on the exit optical axis of the second target surface beamsplitter.
3. The large aperture dual paraboloid reflective modular collimator of claim 2, wherein: the focal positions of the primary parabolic mirror assembly and the secondary parabolic mirror assembly are located at the same point between the primary parabolic mirror assembly and the secondary parabolic mirror assembly.
4. The large aperture dual paraboloid reflective modular collimator of claim 3, wherein: and a primary image surface position is arranged between the primary parabolic mirror assembly and the secondary parabolic mirror assembly.
5. The large aperture dual paraboloid reflective modular collimator of claim 4, wherein: an expandable reserved interface is arranged between the third target surface light pipe and the second target surface spectroscope.
6. The large aperture dual paraboloid reflective modular collimator of claim 5, wherein: the transmission and reflection ratios of the first target surface spectroscope and the second target surface spectroscope are 1:1, 1:2 or 2: 1.
7. The large aperture dual paraboloid reflecting modular collimator of any one of claims 1 to 6, wherein: the primary parabolic reflector assembly is a reflector with the aperture of 350mm and the focal length of 1500mm, the substrate is made of low-expansion glass ceramics, the surface of the primary parabolic reflector assembly is plated with a protective silver external reflection film, and the surface type precision of the primary parabolic reflector assembly is superior to 1/50 lambda.
8. The large aperture dual paraboloid reflective modular collimator of claim 7, wherein: the secondary parabolic reflector assembly is a reflector with the caliber of 30mm and the focal length of 200mm, the substrate is made of low-expansion glass ceramics, the surface of the secondary parabolic reflector assembly is plated with a protective silver external reflection film, and the surface type precision of the secondary parabolic reflector assembly is superior to 1/50 lambda.
9. The large aperture dual paraboloid reflective modular collimator of claim 8, wherein: the reflector component is a reflector with the caliber of 40mm, the substrate is made of low-expansion glass ceramics, the surface is plated with a protective silver external reflection film, and the surface accuracy is superior to 1/50 lambda.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921582773.XU CN210294662U (en) | 2019-09-24 | 2019-09-24 | Large-caliber double-paraboloid reflection modular collimator |
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| CN201921582773.XU CN210294662U (en) | 2019-09-24 | 2019-09-24 | Large-caliber double-paraboloid reflection modular collimator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488474A (en) * | 2019-09-24 | 2019-11-22 | 西安佐威光电科技有限公司 | A kind of heavy caliber dual paraboloid reflecting module parallel light tube |
| CN113267146A (en) * | 2021-05-12 | 2021-08-17 | 中国科学院西安光学精密机械研究所 | Method and system for calibrating parallelism of heterodromous deflection light pipe based on double-mirror splicing |
-
2019
- 2019-09-24 CN CN201921582773.XU patent/CN210294662U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488474A (en) * | 2019-09-24 | 2019-11-22 | 西安佐威光电科技有限公司 | A kind of heavy caliber dual paraboloid reflecting module parallel light tube |
| CN113267146A (en) * | 2021-05-12 | 2021-08-17 | 中国科学院西安光学精密机械研究所 | Method and system for calibrating parallelism of heterodromous deflection light pipe based on double-mirror splicing |
| CN113267146B (en) * | 2021-05-12 | 2022-03-22 | 中国科学院西安光学精密机械研究所 | Method and system for calibrating parallelism of heterodromous deflection light pipe based on double-mirror splicing |
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